| | G
- gap
- See rotational delay
- GECOS field (passwd file)
, 
- GIDs
,  - assigning
,  - definition
,  - large
, 
- grep command
, 
- group file
- deleting user accounts and
,  - description
,  - fields in
, 
- group ID numbers
, , , 
- groups
- changing primary
,  - default
,  - description
, ,  - description of names
,  - displaying groups a user belongs to
,  - guidelines for managing
, ,  - ID numbers
, , ,  - name services and
,  - names
- description
, 
- permissions setting for
,  - primary
, ,  - secondary
, ,  - storage of information for
, , ,  - UNIX
, 
- groups command
, 
H
- halt command
, 
- header format
- copying files with different with cpio command (how to)
, 
- High Sierra file system
, 
- history environment variable
, 
- /home (automounted)
, 
- HOME environment variable
, 
- /home file system
- user home directories and
, 
- hot-plugging
- adding a SCSI device to a SCSI bus (how to)
,  - adding PCI adapter card (how to)
,  - configuring a SCSI controller (how to)
,  - configuring a SCSI device (how to)
,  - connecting a SCSI controller (how to)
,  - disconnecting a SCSI controller with cfgadm command (how to)
,  - overview
,  - PCI devices (overview)
,  - removing a SCSI device (how to)
,  - removing PCI adapter card (how to)
,  - replacing an identical device on a SCSI controller (how to)
,  - unconfiguring a SCSI controller (how to)
, 
- HSFS
- See High Sierra file system
I
- I/O, direct
, 
- IA based systems
- UFS format
, 
- ID numbers
- group
, , ,  - user
, , , 
- identifying
- CD media (how to)
,  - devices
,  - disks on a system (how to)
, 
- inconsistencies in file systems
, 
- incorrect . and .. entries
, 
- incremental backup
, ,  - example of
, 
- indirect blocks
, 
- init command
- description
,  - shutting down a standalone system
, 
- init states
- See run levels
- initialization files
- system
, 
- inode list size
, 
- inode states
, 
- inodes
,  - bad number
,  - block special
,  - character special
,  - checking format and type
,  - directory
,  - FIFO
,  - link count
,  - number of bytes per
,  - regular
,  - size
,  - symbolic link
, 
- installboot command
, , 
- installing a boot block (how to)
- IA
,  - SPARC
, 
- interactive
- checking file systems
,  - restore (how to)
, 
- ISO 9660 file system
, 
- ISO standards
- 9660 CD format
, 
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